I have an input dataset whose records will be appended to an existing database. Prior to being appended, the data will go through heavy, time-intensive processing. I want to filter out records from ...

I have developed a vector layer which predicts which polygons are more or less likely to experience coral bleaching.
I now have another vector layer with the same extent with actual coral bleaching ...

I am relatively new to both the python and R programming languages, having a small amount of exposure to both. Which language has the edge when working with spatial data and when would you use R over ...

I have about 1000+ running routes which I can load into memory as polylines using latitude and longitude data captured from a running watch. From these polylines I would like to be able to identify ...

I am going to perform an unsupervised classification on my dataset and will get a map as a result. The objective is to rebuild an already existing map (of different soil types) with my new dataset. ...

I have two shapefiles which encompass 3897 features each. Corresponding shapefiles (village and watershed that flows into it) have the same ID (ws_id in one, OBJECTID in the other). Many watersheds ...

I need some help because I do not know how to model this issue:
I have two polyline shapefiles. They have an attribute that I need to be compared. These are roads from different sources. So, I have ...

I hope I get the terminilogy right! Correct me if I mess something up.
I need to perform some calculations for a scoring system for different habitat types.
The Problem is that I have two different ...

I need some help with this:
First of all, I wanted to "Compare strings from two fields", and asking before at gis.stackexchange, in this post someone help me with this topic, referring me to a Python ...

At uni I used ERDAS imagine to view two rasters at the same time and it had various viewers for comparing them. I'm looking for something that has a slider so that I can see the differences between ...

I'm curious if there is a side-by-side comparison of Bentley's Microstation v8i (Select series 3) with ESRI's ArcMap 10.1 showing capabilities and filetype acceptance.
I have heard some conversations ...

I am interested in developing a web-mapping application. I am relatively familiar with Python and so i'm looking for a python framework. What are my options? what are the pros and cons of each option? ...

I've generated a map of ecoregions based on some environmental data using a semi-supervised classification where I combined a statistical clustering with random forests to generate my map.
I created ...

I'm currently trying to teach myself GIS and I have some really basic questions. I apologize if this has already been asked, but I have yet to find an answer to my question.
So since I use a mac and ...

I run into this problem a lot. I have two polyline's and I need to test for Spatial differences in them. Usually I use Erase and I have my answer, but on this PC I now only have access to ArcGIS Basic ...

I have several sets of choropleth maps showing ranges of poverty by census tract, each using a different poverty measure. All of the maps use the same categorical ranges to define poverty status.
The ...

I have made a List containing all the original data (.shp files), and I have another List containing the modified data. I basically want to check all the modified file data against the original... So ...

I would like to know what's the best method(s) to compare two DEMs without using any GUI soft like QGIS or ArcGIS.
I'd like to do it in Python or C++, with GDAL or other similar lib.
Does calculating ...

I have two PCS with ostensibly the same configuration (i.e. both ArcGIS Desktop 10.0 SP5, both 4Gb RAM) yet when I load the same file geodatabase onto both and run the same large (400 element) model ...

My office has about 100 GB of geospatial data of varying forms (imagery, feature classes in geodatabases, LIDAR, tables, etc) that have gone somewhat unmanaged for the decade during which they were ...

I’m an MSc GIS student in the final year of my studies. I’m researching for my dissertation project which is entitled ‘Can Quantum GIS replace Proprietary GIS in large organisations?’
I’m primarily ...

I want to calculate the percent change for median household income in Los Angeles at the block group level from 2000 to 2010. Someone told me I have to reaggregate 2000 block data to 2010 block group ...

For my final academic work I have developed a compression algorithm for GPS trajectories. I can estimate the quality of the spatio-temporal compression by computing the syncronized euclidean distance ...

I'm curious as to what comparisons are out there between different Open Source Desktop GIS software packages. I'm aware that there has been a QGIS and gvSIG comparison on this site but I am looking ...